Beloved Sisters
Tang Hwi had spun a clever lie to Tang Ga-in, claiming that his Qi Deviation seizures struck in strict eight-hour cycles. Since he was deliberately damaging his own acupoints to mimic the symptoms, she had no reason to doubt him. An inexperienced genius was always the easiest to deceive in these situations.
Thanks to this setup, Tang Hwi was able to slip into her room three times a day for their secret trysts. The reason he spaced these visits out so carefully was because of his mother, Tang Suryeon. As the Patriarch and a master of the Transcendental Realm, her senses were incredibly sharp; with his current level of cultivation, the absolute limit he could maintain a barrier of qi to mask his presence from her was about an hour.
Erecting a barrier of qi capable of fooling a Transcendental Realm master with his still-developing internal energy pushed him to his absolute limit within that single hour. Once he exhausted his energy to maintain it, he required at least six hours to fully recover.
The training grounds where he had first claimed her were far enough from Tang Suryeon's quarters to allow him a full two hours, but now that they were trysting directly in Tang Ga-in's bedchamber, he had to be much more cautious. Thus, Tang Hwi split his intimate encounters with Tang Ga-in into three brief daily sessions. Of course, this did not mean their depraved acts were strictly confined to her room.
"Ugh! Ga-in... I'm begging you."
"Sigh. What a useless brother you are. And you call yourself a proud son of the great Sichuan Tang Clan? Hurry up and pull down your pants."
"I'm sorry."
When he suddenly paled in the middle of the hallway, acting as if his deviation was flaring up, and called out to her in a pathetic, strained voice, Tang Ga-in didn't even hesitate. She immediately slipped behind Tang Hwi, pressing her body flush against his back. Her soft, supple breasts squished against his spine. Though their size left a bit to be desired compared to their mother's, they were breasts he had grown incredibly fond of.
As Tang Hwi unfastened his belt and pulled out his throbbing, erect shaft, Tang Ga-in wrapped her arms around him from behind. Grasping his thick length with both hands, she began to stroke him up and down with practiced speed. Because he had thoroughly conditioned her to believe that a mild flare-up of his Qi Deviation could be cured instantly by a single ejaculation, Tang Ga-in had grown accustomed to jerking him off in the open hallways without a second thought.
At first, she had been absolutely horrified. He had suddenly pulled out his rock-hard cock right in the middle of the Patriarch's Pavilion hallway—where Tang Ga-hui or Tang Suryeon could walk by at any second—and desperately begged her to relieve him. Yet now, she did it without batting an eye. She, too, had become utterly addicted to the thrilling suspense of giving him a quick handjob in a place where they could be caught at any moment.
Tang Ga-hui or Tang Suryeon could appear at any corner. They might even run into Namgung Bu-ryun, who rarely ventured out of his quarters due to his constant hangovers. The sheer risk of walking side-by-side with Tang Hwi in this open corridor while secretly stroking his erect shaft gave her an incomparable, intoxicating rush.
"Ga-in... I think I'm about to cum."
"Ah, wait a second... Here! Cum in here."
Quickly unbuckling the hidden weapon pouch strapped to her waist, Tang Ga-in pressed its open mouth against the tip of his penis. Tang Hwi's ejaculation volume was far greater than that of ordinary men; spilling it on the floor would take ages to clean, and they had no other place to dispose of it. Her leather pouch was spacious and perfectly airtight, making it the ideal vessel to conceal his mess.
Of course, she could have easily carried a dedicated cloth, but this was a deliberate choice on Tang Ga-in's part. Even after she thoroughly washed the pouch, the faint, musky scent of his semen lingered deep within the leather. When she stored her hidden weapons, like her cow-hair needles, inside the pouch, they absorbed that subtle, intoxicating aroma. Tang Ga-in had recently developed a secret habit of masturbating to that scent whenever Tang Hwi wasn't around, and she had grown incredibly fond of this little routine.
"Now~ my useless big brother, hurry up and shoot your load right into your little sister's hand~♡"
"I-I'm cumming...!"
"Mnh♡"
At Tang Hwi's choked cry and the violent, rhythmic throbbing of his shaft pulsing against her palms, a deeply seductive smile spread across her face. Ever since she had begun sharing her body with Tang Hwi, Tang Ga-in's innocent, youthful charm had gradually melted away, replaced by a ripe, sultry sensuality. If any young martial artists of the Jianghu had seen her expression right now, they would have blushed furiously and been utterly bewitched.
Splurt! Spurt! Squirt! As always, a torrent of thick semen pelted the interior of the leather pouch. Despite its generous capacity, the powerful, pressurized streams of his seed quickly filled half the bag. Drip... splurt... Once his release finally subsided, Tang Ga-in sealed the pouch airtight, then gently stroked his softening shaft a few times as if praising a good boy.
"Good job. Honestly, you really can't do anything without me, brother. Aren't you glad you have a little sister like me?"
"Of course I am."
"...Huh?"
Tang Hwi, having rearranged his robes, suddenly pulled her into a tight embrace. As he held her tenderly against his chest, Tang Ga-in stiffened completely. Even though they had already shared the most shameful, intimate acts imaginable, she still froze like a startled rabbit whenever he showed her genuine, sweet affection. Sensing her rigidity, Tang Hwi gently ran his hand down her spine, caressing her lower back to soothe her. He continued his slow, rhythmic strokes, and gradually, the tension melted from her muscles.
"To me, you are both a blessing and my love."
"L-Love?! How can a brother say such things to his own sister...!"
"How could I not love a cute little sister who didn't run away or get angry even after seeing my Heart Demon, but instead accepted it?"
Regretting the loss of her soft, supple breasts pressing against him, Tang Hwi gently pulled back and looked down at his younger sister. "Ga-in."
"Y-Yes?"
"I love you. Not as your brother, but as a man, I cherish and adore you."
The moment she heard this confession from her own flesh and blood, a bolt of lightning seemed to strike Tang Ga-in's mind.
Tang Hwi had dropped the confession to accelerate Tang Ga-in's conditioning. Only when she truly accepted him from the depths of her heart and achieved a perfect union with the essence of his Yin-Yang Semen permeating her Dantian would she undergo the legendary Hwangoltaltae. Once she realized that her physical rebirth was a direct result of their sexual union, it would also provide him with the perfect leverage to persuade Tang Ga-hui.
"Seeing how Tang Ga-hui is slowly opening her heart, I need to begin her conditioning soon. It can't be too late, nor can it be too early."
If they became too close, they would settle into a wholesome sibling dynamic, and she would refuse to sleep with him out of sheer guilt. Conversely, if they remained too distant, she would view him with disgust as a family member worse than a stranger. The current distance between them was absolutely perfect. That was why Tang Hwi wanted to hasten the process.
"Wh-What... Wh-Wh-What...?!"
"Ga-in. How do you feel about me?"
"M-Me?!"
Tang Ga-in's face was flushed a deep crimson, her heart hammering so violently it felt as if it might burst. Even though they were no longer touching, Tang Hwi could practically hear the frantic thumping of her chest. Her burning cheeks, her shallow, ragged breaths, and her trembling, unfocused eyes that still desperately tried to hold his gaze—everything about her betrayed her inner turmoil.
Slowly, a shred of her rationality returned. Unable to look him in the eye any longer, Tang Ga-in averted her gaze. With nowhere else to look, she hung her head low.
"What... what do I even want?"
The forbidden path she had stumbled upon was a trap from which she could never escape. Bewitched by a brief moment of temptation, she was no longer capable of pulling herself out. Yet, even as she lay caught in this snare, the sweet pleasure that continuously flooded her body was no different from a lethal poison to which she had become hopelessly addicted.
Suddenly realizing that she was completely addicted to Tang Hwi, she raised her head slightly to look at him again. She felt herself being drawn into those deep, pitch-black eyes, so uncharacteristic of a Tang Clan martial artist. Because he had not cultivated their poison arts—in truth, it was because he cultivated Demonic Qi—his eyes had not turned the usual toxic green. Instead, they remained a deep, mesmerizing black, shining like rare black pearls.
At this point, she had no choice but to admit it to herself. She was in love with Tang Hwi.
"But... this is wrong."
Just because they had fallen into a forbidden love that blood relatives should never share, did they have to cross that final line? Even though she had finally acknowledged her feelings for him, Tang Ga-in rejected him, her voice laced with a deep, underlying sorrow.
"I'm sorry, brother. I... I don't love you."
"I... I see. Of course..."
He tried to reply calmly, but he deliberately let a flicker of profound disappointment show on his face. While putting on this wounded act, Tang Hwi coldly analyzed her reaction. Although she was trying to push him away, there was absolutely no trace of disgust or hatred toward him. If she truly loathed the idea of incest, some hint of revulsion would have leaked out. But there was none. This meant her rejection stemmed solely from the weight of societal taboos and the fear of the world's judgment. At least, that was Tang Hwi's calculation.
"I must proceed with haste, yet maintain a facade of patience." If he rushed too much, he would ruin his conditioning of Tang Ga-in. If he moved too slowly, his relationship with Tang Ga-hui would become overly complicated. He had to walk a razor-thin tightrope between the two sisters to claim them both as his women. A single misstep would spell disaster, but Tang Hwi felt no anxiety. He had already factored her rejection into his master plan. Had she accepted, it would have simply accelerated his timeline. Her refusal changed nothing of the ultimate outcome.
"Ga-in. I'm sorry."
"Brother? Why are you apologizing—...Wait, again?"
Before she could even finish her sentence, his massive, rock-hard shaft throbbed and pressed firmly against her lower abdomen. They were standing so close that it was practically an embrace, and the moment his erection flared, she felt its heat through her robes. Tang Hwi, who had once again deliberately ruptured his own acupoints to make the dark, corrupted veins bulge across his skin, offered her a bitter, self-deprecating smile.
"Being rejected... hurts more than I thought. I realize once again how weak my mind truly is."
"Wait, wait a minute... Not here. The maids will be coming through here soon. Let's go to your room... I'll do it for you in your room, so...!"
They had less than ten minutes before the servants arrived. Knowing it would be impossible to make him ejaculate with her hands in such a short time, Tang Ga-in frantically urged him to move to her room, but Tang Hwi remained rooted to the spot.
"If you use your mouth, I think I can cum much faster..."
"W-What?!"
"..."
Tang Ga-in stared at him, her embarrassment instantly morphing into sheer, unadulterated shock. In the current Central Plains, the bedroom arts were strictly viewed as reproductive techniques to ensure healthy offspring. Consequently, they only involved manual stimulation or vaginal tightening. For Tang Hwi to ask her to suck his manhood with her mouth was a concept so foreign and depraved that she could only gape in horror. Normally, she would have smacked him upside the head and forced him to settle for her hands, but...
"Ugh! How am I supposed to say no when he's looking at me like a kicked puppy?!"
The problem was her overwhelming guilt. Having just denied her own feelings and crushed his confession, her conscience was heavily burdened. To coldly turn away her pitiful brother in his moment of vulnerability was something the fundamentally soft-hearted Tang Ga-in simply could not bring herself to do. After a brief, agonizing struggle, she shot him a sharp, pouty glare.
"Only this once. I'm only doing this because you're so incredibly pathetic, brother."
With that, Tang Ga-in dropped to her knees right there on the floor...
"Slurp! Nnh. Mph."
She took Tang Hwi's thick shaft into her mouth and began to suck on it with incredibly clumsy, awkward strokes.